The high-efficiency fine crusher is an energy-saving stone crushing and sand-making equipment widely used in mining, building materials, metallurgy, and other industries. Also known as the third-generation fine crusher or new sand making machine, its core advantage lies in simplifying the traditional three-stage crushing to two-stage crushing, significantly improving efficiency and reducing energy consumption. This equipment uses a high-speed rotating rotor to drive hammers or plate hammers, subjecting materials to multiple impacts, grinding, and crushing processes to achieve a fine particle size of less than 5mm. The output is uniform and has excellent particle shape, making it particularly suitable for producing manufactured sand and concrete aggregates.
Working Principle

The working principle of a high-efficiency fine crusher mainly relies on the impact, cutting, and crushing of materials by high-speed rotating hammers or blades. The material enters the crushing chamber through the feed hopper and is repeatedly impacted and cut by the high-speed rotating hammers or blades, thereby achieving the effect of fine crushing.
Product Structure

The equipment mainly consists of a rotating section, a protective plate section, and a housing section. The rotating section's wheel core has multiple non-overlapping hammer frames, with hammer heads fixed to these frames. The width of the hammer heads is greater than the width of the hammer frames and the wheel hub. The wheel core is integrally formed from multiple hubs and fixed to the main shaft. Both ends of the main shaft are supported on the frame via rolling bearing seats. The protective plate assembly is divided into several parts, fixed to the housing to prevent wear, and simultaneously forms various types of impact crushing chambers. The housing is divided into upper and lower parts, connected by bolts for easy disassembly, assembly, and maintenance.
Product Advantages
1. Adjustable discharge particle size.
2. The screen plate adopts a special spring-loaded structure, which is simple, convenient, reasonable, safe, and stable.
3. Utilizes an elastic constant force to ensure a stable crushing force.
4. Employs high-alloy hammers, which reduce wear, extend service life, and increase efficiency.
5. The agitator pad is replaceable, further extending its service life. It is less prone to clogging and offers high safety.
6. Compared to hammer crushers and impact crushers, it only wears the rotor, not the wheel core or hammer frame.
7. Easy maintenance; simply lift the upper chamber and open the lower chamber.
8. Employs a multi-layer, three-channel discharge device for simultaneous discharge, increasing production capacity.
9. Uses a solid rotor with high rotational inertia and strong impact force.
















